---
title: 0.4.4
---

## pg_bm25

### Introduce global background writer

Overhauled the process in which data is written to the index, fixing several issues related to concurrency and insert performance.

Fixes an issue with using the `prefix => ` parameter in fuzzy searches.

Users must make the following change to their `postgresql.conf` configuration file when self-hosting. `pg_bm25` must be added to the list of `shared_preload_libraries` so the background process can be initialized:

```c
shared_preload_libraries = 'pg_bm25'
```

## Full Changelog

The full changelog is available [here](https://github.com/paradedb/paradedb/releases/tag/v0.4.4).
